Organizing for America head Jim Messina wrote on CNN today that the group wouldn’t accept “contributions from corporations, federal lobbyists or foreign donors.”

But if history’s any indication, that pledge may not last — and OFA may not close every potential loophole.

Democratic convention organizers pledged that the 2012 convention would have zero funding from corporate donors. But organizers ultimately backtracked, accepting $5 million in corporate donations and not repaying a $10 million loan guaranteed by Duke Energy.

Nor was the Obama campaign as careful as they could have been about not accepting foreign donations, according to an October report by the Government Accountability Institute. “Obama’s re-election campaign took in $130,867 from donors who provided no ZIP codes and $2 million from those with incomplete ZIPs in September,” reported the New York Post. “That same month, Romney’s campaign recorded $2,450 from donors without ZIP codes and $2,500 from those with incomplete ZIPs.”

It looks great to have the media reporting that you won’t take corporate and foreign donations. But it’ll be interesting to see if the OFA actually manages to keep the pledge this time around.